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Modern agriculture has evolved dramatically over the past half century. To be profitable, farms need to significantly increase their crop yields, and thus there are amplified demands on farming equipment. Equipment duty cycles have been raised in scope and duration, as the required output of the agricultural industry to sustain a growing population has stimulated the need for further advances in effective productivity gains on the farm. The mainstay mechanical assistant to the farmer, the tractor, has also evolved with the changes in modern agriculture to meet the requirements of these newer tasks. Larger, more capable vehicles have been introduced to help farmers efficiently meet these demands. At the same time, the current generation of tractor diesel engine lubricants has facilitated high levels of performance in the agricultural equipment market for many years. This is a testament to the role modern lubricants play in productivity in such a critical industry.

The use of a copper diesel fuel additive in an emission control system improves particulate oxidation. This expands the operability of available systems by reducing the particulate mass loading and related external energy consumption required during regeneration. Easier, more frequent regenerations improve overall engine/system efficiency and reduce thermal stress on filtration media. Procedures for optimizing additive use are presented. In addition, the results from a health study are reviewed.